The variation of kernel color in corn plants is an inherited trait. r is the dominant allele for red kernels in a corn plant and r is the recessive allele for yellow kernels. what is the probability that a corn plant with the genotype rr crossed with a corn plant rr will have offspring with the genotype rr? express your answer as a fraction using numerals for numbers and / for the fraction bar. do not include spaces.

Suppose a particular species of tulip plant has three alleles for the gene that codes for flower color. the cr allele produces red tulips, the cp allele produces purple tulips, and the cw allele produces white tulips. cr is dominant over cp and cw, and cp is dominant over cw. for each of the following crosses, determine the expected ratio of offspring for each flower color. cr cp x cp cw cr cw x cp cw 1 red: 1 purple : 0 white, 1 red: 2 purple: 1 white, 2 red: 1 purple 1 white, 1 red: 3 purple : 0 white, 2 red: 0 purple : 2 white, 2 red: 2 purple : 0 white